Like many other technology heavyweights, Twitter has a lack of diversity in its ranks. According to data released by the company on Wednesday night, women comprise 30% of its US workforce and only 10% of its technical positions. Twenty-nine percent of its staff is Asian, while only 2% is black and 3% is Hispanic. More than three-quarters (79%) of its leadership team is male, and 72% is white.

"We are keenly aware that Twitter is part of an industry that is marked by dramatic imbalances in diversity — and we are no exception," Janet Van Huysse, its VP of diversity and inclusion, said in a blog post.

Facebook’s stock hit an all-time high after it reported second-quarter revenue of $2.9 billion, exceeding expectations, as well as a profit of $791 million. It said 62% of its advertising revenue comes from mobile ads.